Mac and cheese is the ultimate comfort food. But what if you want to enjoy it without butter or oil? Don’t worry—you can still achieve a creamy, delicious dish without the added fat. In this article, you’ll learn step by step how to cook mac and cheese without oil while keeping it rich, cheesy, and satisfying.
Whether you’re looking for a lighter version of this classic dish, following a low-fat diet, or simply ran out of oil and butter at home, this guide will help you cook a wholesome and flavorful mac and cheese.
Why Make Oil-Free Mac and Cheese?
- Healthier Choice: Reduces unnecessary fat and calories.
- Diet-Friendly: Perfect for those on a low-fat or plant-based diet.
- Simple & Light: Still creamy and cheesy, but without heaviness.
- Budget-Friendly: Uses fewer ingredients while staying delicious.
Knowing how to cook mac and cheese without oil gives you a healthier option without sacrificing taste.
Ingredients You’ll Need
Here’s a simple list of ingredients for oil-free mac and cheese:
- 1 pound elbow macaroni (or pasta of your choice)
- 3 cups skim or low-fat milk (or unsweetened almond/soy milk for vegan)
- 2 tablespoons cornstarch or flour (thickener)
- 1 cup shredded low-fat cheddar cheese
- ½ cup mozzarella or Parmesan (optional, for extra flavor)
- ½ teaspoon garlic powder
- ½ teaspoon onion powder
- ½ teaspoon black pepper
- Salt to taste
- 1 teaspoon mustard (optional, for tang)
- Fresh parsley for garnish

Step-by-Step Guide: How to Cook Mac and Cheese Without Oil
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Step 1: Cook the Pasta
Boil the macaroni in salted water until al dente. Drain and set aside.
Step 2: Make the Sauce Without Oil
Instead of starting with butter or oil, we’ll use a milk-and-cornstarch base:
- In a saucepan, add 2½ cups of milk.
- Whisk cornstarch with the remaining ½ cup of cold milk to make a slurry.
- Slowly add the slurry to the saucepan while whisking.
- Cook over medium heat until the mixture thickens into a smooth base.
Step 3: Add Cheese & Seasonings
- Stir in shredded cheddar and mozzarella.
- Mix until the cheese melts completely and forms a creamy sauce.
- Add garlic powder, onion powder, mustard, salt, and pepper.
This is the secret to how to cook mac and cheese without oil—using a milk and starch base instead of butter.

Step 4: Combine Pasta and Sauce
Add the cooked macaroni into the cheese sauce. Stir well until every piece is coated with the creamy mixture.
Step 5: Serve Hot
Garnish with parsley and serve immediately. Enjoy your delicious, guilt-free mac and cheese without oil!
Variations of Oil-Free Mac and Cheese
- Vegan Version: Use plant-based milk and dairy-free cheese.
- Baked Version: Transfer mac and cheese into a baking dish, sprinkle breadcrumbs (oil-free), and bake until golden.
- High-Protein Version: Add cottage cheese or Greek yogurt instead of butter.
- Spicy Version: Mix in chili flakes or jalapeños.
Storage & Reheating
- Fridge: Store in an airtight container for 3–4 days.
- Freezer: Freeze portions for up to 2 months.
- Reheat: Add a splash of milk and warm on the stove or microwave for a creamy texture.

Pro Tips for Success
- Use low-fat or skim milk for a lighter sauce.
- Whisk continuously to prevent lumps in the cornstarch base.
- Shred cheese yourself—pre-shredded cheese contains starch that makes sauces grainy.
- Add seasonings gradually and adjust to taste.
Conclusion
Now you know exactly how to cook mac and cheese without oil—a lighter, healthier, and equally delicious way to enjoy this classic dish. The milk-and-starch method creates the creaminess you love without butter or oil. Whether you’re making it for family dinner, meal prep, or a cozy night in, this recipe is sure to satisfy.